Hello everybody,
I'm brand new here. Just tried to find some help using the similar issues other people had with the Nest product, but still, I can't understand why mine is not working.
here is the situation :
I bought the last Nest Learning Thermostat.
I have a heat pomp (geothermical).
I have a separate electric hot water tank
I connected the N and the L to the 230 V and protected it with a 2A
The 2 and the 3 are connected to the heat pomp (geothermical).
The 5 and the 6 are connected to the hot water.
The T1 and T2 are connected to 12V.
STATE : The 2 elements (of Nest) are communicating well, I can stop the manual mode from the NEST that show the temperature.
The network works just fine. I can command it from My phone, inside the house and far from the house.
BUT...when I ask for 26°C, the back is orange and the heat pomp is not working. I let it like that a complete night...didn't work at all.
If I press the manual button : it works just fine with the 3 indicators green. and I can stop the heat pomp with a press on the same button or from the other device from Nest. I can also stop the manual mode from my phone.
So, it can order manually to make the pump works, but not from the thermostat Nest.
Here a picture of my connection. Any help would be really great.
The connection of the Thermostat :
